Project Description

Nimonic 80A (UNS N07080)

Nimonic 80A (UNS N07080) is a wrought, age-hardenable nickel-chromium alloy. Alloy 80A is similar to alloy 75 but made precipitation hardenable by additions of aluminium and titanium. Nimoinc 80A has good corrosion and oxidation resistance and high tensile and creep-rupture properties at temperatures to 815℃ (1500ºF). Vacuum refined versions are also available. Alloy 80A is used for gas-turbine components (blades, rings, discs), bolts, tube supports in nuclear generators, exhaust valves in internal combustion engines and has many other offshore/marine, automotive and electrical applications.

Equivalent Grades

TrademarksGBJISKSASTMUNSDINW.NrGOSTBSNF
Nimonic 80AGH4080ANCF80AN07080NiCr20TiAl2.4952NiCr20TiAl
N80A
NiCr20TiAl
NC20TA

Product Forms

Wire, Bar, Strip, Sheet, Plate, Tube, Pipe, Pipe Fittings, Forgings

Chemical Composition,%

CPSMnSiCrNiCoAlTiCuFe
0.10≤0.02≤0.015≤1.00≤1.0018.00~21.00Bal≤2.001.00~1.801.80~2.70≤0.50≤3.00

Typical Physical & Mechanical Properties (RT, Solution Annealed)

Density, g/cm3Melting Point, ℃Tensile Strength, MPaYield Strength, MPaElongation,%
8.191320-136598065020

Specifications

Rod, Bar, Wire, ForgingsBS 3076&HR 1, ASTM B637
Plate, Sheet, StripBS HR 201
Pipe, TubeBS HR 401
OthersASTM B366/ASME SB366(Fittings), DIN 17742

Features

  • High oxidation and corrosion resistance
  • Outstanding mechanical properties afterage hardening
  • Suitable for applications where elevatedtemperatures and continual stresses are a primary consideration
  • Good machinability
  • Easily welded

Applications

  • Gas turbine engineering
  • Automobile exhaust valves
  • Die-casting inserts and cores
  • Nuclear boiler tube parts.